Relationship matter

BROMATA

Greetings
I need your advice I am 21,i lost my dad 2010 my mum struggled to take care of I and my two siblings,she tried all her best I was able to finish secondary school and she enrolled me in the University, things turn sour when I lost my mum early this year am left with nobody but my siblings no family member cares about and I am currently in my third year in the University, I am also the first child I actually did part-time job so I was able to raise money to start a little business which I use to support myself and my siblings things get so hard that sometimes I starve just to be able to settle things with my younger ones.
Now things got worst I was robbed last week the thief's took all the cash I add with me brough pos transferred the little money I add and even took the clothes I sell even my phone now I am hopeless I am thinking of committing suicide but the thought of my siblings keeps me alive I am so frustrated I borrowed a friends phone to come online please advise me on the next step to take